<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <h1>主应用</h1>
    <video src='/static/aaa.mp4' width="50%" autoplay muted='muted' loop='loop'></video>
    <h1>子应用</h1>
    <video src='/user/ustatic/aaa1.mp4' width="50%" autoplay muted='muted' loop='loop'></video>
</body>
</html>